Paper-punch.



A. M. BARRETT.

PAPER PUNCH. APPL-IGATION FILED $23125. 1907.

Patented Jan. 12, 1909.

RS CO-.'WASHINOTI7N, g. :4

UNITED STATES PATENT OFFICE.

ARTHUR M. BARRETT, OF CHICAGO, ILLINOIS, ASSIGNOR TO JOHN R. BARRETT, OF CHICAGO, ILLINOIS.

PAPER-PUNCH.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed. September 25, 1907. Serial No. 394,512.

To all whom it may concern:

Be it known that I, ARTHUR M. BARRETT, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Paper Punches, of which the following is a specification, reference being had to the accompanying drawmgs.

My invention relates to apparatus for punching holes in sheets of paper, and has particularly for its object to provide a new and improved apparatus for use in punching sheets of paper for use in temporary binders.

Many forms of temporary binders are provided with posts or prongs upon which the sheets are placed when inserted in the binder, but the position of such posts or prongs varies in different forms of binders, so that a sheet perforated to fit one form of binder will rarely fit another of diiferent size or make. By my invention, however, I provide an improved punching apparatus which may readily be adjusted to punch at one operation all the holes required to adapt the paper to fit the binder and may readily be adjusted to vary the position of the holes so that it may be used to punch sheets for various styles of binders.

In the drawings,Figure 1 is a plan view of my improved apparatus; Fig. 2 is a partial sectional view on line 22 of Fig. 3; Fig. 3 is a cross-section on line 33 of Fig. 1; and Fig. 4 is an enlarged detail of one of the punching pins or dies.

Referrin to the drawings,5 indicates the base of the apparatus, which is in the form of a rectangular box or frame having a hinged lid or plate 6 at the top thereof, as shown in Figs. 1 and 3, 7 indicating the hinges which connect said lid with the lower portion of the box 5.

8 indicates a punch-block or casting, which extends longitudinally of the frame 5 near its rear edge, being fixedly secured to the rear edge of the cover-plate 6, as shown in Fig. 3, preferably by rivets 9. A strip 10 is placed between the rear portion of the casting 8 and the plate 6 so that a portion of the block or casting 8 projects beyond said strip directly over the cover-plate, leaving a space or slit 11 between them, as shown in Fig. 3. This space or slit is provided to receive the sheet or sheets to be punched, one edge of said sheets being placed upon the plate 6 below the projecting portion of the casting 8.

12 indicates a series of dies or punches fitted in vertical holes or passages 13 in the projecting portion of the casting 8, as shown in Figs. 2 and 3, a number of said holes being provided at short intervals throughout the length of the casting. Said punches move freely in said passages, but are held 111 their uppermost position by springs 1 1 fitted upon said pins above the casting 8 and bearing at their upper ends against heads 15 wlth which said punches are provided, as best shown in Fig. 4.

16 indicates an operating lever, which is pivotally supported by lugs 17 rising from the end portions of the casting 8, as best shown in Fig. 1,-said lever being provided with lugs 18 which fit against and are adapted to be secured to the lugs 17 by means of a hinged pin 19, as best shown in Fig. 1. By withdrawing the pin 19, the lever 16 may be quickly removed. Said lever is provided with a longitudinally extending bar 20 which overlies the punches 12, as shown 1n Figs. 1 and 3, the arrangement being such that when the parts are in the position shown in Fig. 3 said bar 20 rests upon the upper ends of the several punches. By depressing the lever 16 the punches may be simultaneously forced downward to punch the sheets placed under the projecting portion of the casting 8. The cover-plate 6 is provided with a series of holes 21, which register with the holes 13 in the casting 8, as shown in Fig. 3.

22 indicates a gagerod, which is secured at the under side of the cover-plate 6, preferably by clips 23, shown in Fig. 3, and in dotted lines in Fig. 1,--said gage-rod extending beyond one end of the cover-plate, where it is provided with an'up-turned end 24, as shown in Fig. 3. The clips 23 by their elasticity hold the gage-rod up against the under surface of the cover-plate, but their tension is such as to permit it to be moved longitudinally to vary the position of the up-turned end 24. The gage-rod may, therefore, be set at different positions to accommodate sheets of different sizes.

In practice the several punches are so placed in the difierent passages or holes 13 as to punch holes at the proper distance apart to suit the binder to which the sheets 'ter, the remaining are to be applied. The operating lever is ceived by the box or base 5. It will thus be seen that all the necessary holes may be simultaneously punched in the sheets and that the apparatus may be'very quickly adjusted to suit the requirements of a great variety of binders.

The number of holes in the punch-block, as well as their position relatively to one another, may be varied to meet the requirements of any particular case in order to adapt the punch for punching holes spaced a great variety of distances apart. For

example, the first three holes at one end of the punchblock may be placed five-sixteent is of an inch a art from center to cenoles being one-quarter of an inch between centers. In this Way holes may be punched at any distance apart from thirteen-sixteenths of an inch up by sixteenths.

That which I claim as my invention, and desire to secure by Letters Patent, is,-

1. A punching apparatus having a box forming a base therefor, a hinged coverplate for said box, a punch-block supported by said cover plate and extending thereover, a plurality of holes in said punchblock, a plurality of punches in certain of said holes, and a lever for simultaneously actuating said'punches, said cover-plate having holes registering with the holes in said punch-block whereby the uunchings are received in said box.

2. A punching apparatus having a box forming a base therefor, a hinged cover-plate for said box, a punch-block supported by said cover-plate and extending thereover, a plurality of holes in said punch block, a plurality of punches in certain of said holes, a lever for simultaneously actuating said punches, said cover-plate having holes registering with the holes in said punch-block whereby the punchings are received in said box, and a gage-rod carried by said coverplate.

ARTHUR M. BARRETT.

Witnesses:

JOHN L. JACKSON. MINNIE A. HUNTER. 

